ypo, Crenicichla Casciotta [J. R.], Almirón [A. E.], Piálek [L.], Gómez [S. E.] & Říčan [O.] 2010:644, Figs. 1-4 [Neotropical Ichthyology v. 8 (no. 3); ref. 30975] Paraná basin, arroyo Urugua-í, at Establecimiento "Alto Paraná", ca 25°57.9'S, 54°06.5'W, Misiones, Argentina. Holotype: MACN-ict 9431. Paratypes: AI, MACN-ict, MLP. Type catalog: Nadalin & López 2015:11 [ref. 34112]. •Valid as Crenicichla ypo Casciotta, Almirón, Piálek, Gómez & Říčan 2010-- (Koerber 2011:8 [ref. 31122], Varella 2011:136 [ref. 37216], Casciotta et al. 2013:385 [ref. 32938], Koerber 2014:13 [ref. 33621], Piálek et al. 2015:25 [ref. 33984], Mirande & Koerber 2015:58 [ref. 35117], Říčan et al. 2017:7 [ref. 35070], Piálek et al. 2019:394 [ref. 36110], Varella et al. 2023:5 [ref. 40273], Říčan et al. 2023:55 [ref. 40289]). Current status: Valid as Crenicichla ypo Casciotta, Almirón, Piálek, Gómez & Říčan 2010. Cichlidae: Cichlinae. Distribution: South America: Urugua-í River drainage, middle Paraná River basin, Misiones, Argentina. Habitat: freshwater.